منابع مشابه
Estimation of Nonlinear Dc-motor Models Using a Sensitivity Approach
A nonlinear model structure for a permanent magnet DC-motor, appropriate for simulation and controller design, is developed. The essential nonlinearities are due to coulomb friction and to voltage and velocity dependent brush resistance. The physical parameters of the nonlinear model are estimated directly, using a sensitivity approach for input design and evaluation of relative accuracy of the...
متن کاملAC-DC & DC-DC Converters for DC Motor Drives
This paper deals with a comprehensive survey on the topic of AC/DC & DC/DC converters for DC Motor Drives. A substantial number of different AC/DC and DC/DC topologies appropriate for DC motor drives are presented. This critical literature review brings out merits, demerits, and limitations besides giving the basic operating principles of various topologies. Keywords—controlled-rectifiers, chop...
متن کاملA New Hybrid Brushless DC Motor/Generator without Permanent Magnet
The Brushless DC (BLDC) motor is a simple robust machine which has found application over a wide power and speed of ranges in different shapes and geometry. This paper briefly reviews the fundamentals behind the motor and also the different types of BLDC motors with different geometries and then presents a new configuration for BLDC motor/generator, which does not use a permanent magnet in the ...
متن کاملImplementation of a Brushless Dc Motor as a Virtual Motor
Due to their simple structure, high efficiency, fast dynamic response, Permanent Magnet Brushless DC (PMBLDC) machines are extensively used in automation, consumer electronics, electric vehicles and medical and industrial applications. Availability of these high energy density permanent magnet materials enhances the performance of PMBLDC motor drive and also reduces the size and losses in these...
متن کاملParametric Estimation in a Recurrent Competing Risks Model
A resource-efficient approach to making inferences about the distributional properties of the failure times in a competing risks setting is presented. Efficiency is gained by observing recurrences of the compet- ing risks over a random monitoring period. The resulting model is called the recurrent competing risks model (RCRM) and is coupled with two repair strategies whenever the system fails. ...
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ژورنال
عنوان ژورنال: International Conference on Aerospace Sciences and Aviation Technology
سال: 1989
ISSN: 2636-364X
DOI: 10.21608/asat.1989.25965